```html
<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Java自动拆箱装箱原理解析</title>
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        body {
            font-family: 'Noto Sans SC', Tahoma, Arial, Roboto, "Droid Sans", "Helvetica Neue", "Droid Sans Fallback", "Heiti SC", "Hiragino Sans GB", Simsun, sans-serif;
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</head>
<body class="bg-gray-50">
    <!-- Hero Section -->
    <section class="hero text-white py-20 px-4 md:px-0">
        <div class="container mx-auto max-w-4xl">
            <div class="flex flex-col items-center text-center">
                <i class="fas fa-code text-5xl mb-6"></i>
                <h1 class="text-4xl md:text-5xl font-bold mb-6 font-serif">Java自动拆箱装箱原理</h1>
                <p class="text-xl md:text-2xl font-light max-w-2xl leading-relaxed">
                    深入理解Java基本类型与包装类的自动转换机制及其底层实现
                </p>
            </div>
        </div>
    </section>

    <!-- Main Content -->
    <main class="container mx-auto max-w-4xl px-4 py-12 md:py-16">
        <!-- Code Example Section -->
        <section class="mb-16">
            <div class="flex items-center mb-6">
                <div class="w-2 h-8 bg-purple-600 mr-3"></div>
                <h2 class="text-2xl md:text-3xl font-bold text-gray-800 font-serif">代码示例解析</h2>
            </div>
            
            <div class="code-block p-6 mb-8">
                <pre class="text-gray-300 overflow-x-auto"><code class="language-java">
<span class="code-line">public void test1(){</span>
<span class="code-line">    int a = 10;</span>
<span class="code-line">    Integer b = new Integer(10);</span>
<span class="code-line">    </span>
<span class="code-line">    System.out.println(a==b); // 自动拆箱 true</span>
<span class="code-line">     System.out.println(b.equals(a)); // true</span>
<span class="code-line">}</span>
                </code></pre>
            </div>

            <div class="grid md:grid-cols-2 gap-8">
                <div class="card bg-white p-6 rounded-lg shadow-md transition duration-300">
                    <div class="flex items-center mb-4">
                        <div class="w-8 h-8 bg-blue-100 rounded-full flex items-center justify-center mr-3">
                            <i class="fas fa-question-circle text-blue-600"></i>
                        </div>
                        <h3 class="text-xl font-semibold text-gray-800">发生了什么？</h3>
                    </div>
                    <p class="text-gray-600 mb-4">
                        这段代码展示了Java中的自动装箱(Autoboxing)和拆箱(Unboxing)特性。
                    </p>
                    <ul class="space-y-2 text-gray-600">
                        <li class="flex items-start">
                            <i class="fas fa-check-circle text-green-500 mt-1 mr-2"></i>
                            <span>第3行创建了一个Integer包装类对象</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-check-circle text-green-500 mt-1 mr-2"></i>
                            <span>第5行比较int和Integer时发生自动拆箱</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-check-circle text-green-500 mt-1 mr-2"></i>
                            <span>第6行调用equals方法时发生自动装箱</span>
                        </li>
                    </ul>
                </div>

                <div class="card bg-white p-6 rounded-lg shadow-md transition duration-300">
                    <div class="flex items-center mb-4">
                        <div class="w-8 h-8 bg-purple-100 rounded-full flex items-center justify-center mr-3">
                            <i class="fas fa-lightbulb text-purple-600"></i>
                        </div>
                        <h3 class="text-xl font-semibold text-gray-800">关键概念</h3>
                    </div>
                    <div class="space-y-4">
                        <div>
                            <h4 class="font-medium text-gray-700">自动装箱 (Autoboxing)</h4>
                            <p class="text-gray-600 text-sm">将基本数据类型自动转换为对应的包装类对象</p>
                        </div>
                        <div>
                            <h4 class="font-medium text-gray-700">自动拆箱 (Unboxing)</h4>
                            <p class="text-gray-600 text-sm">将包装类对象自动转换为对应的基本数据类型</p>
                        </div>
                        <div>
                            <h4 class="font-medium text-gray-700">Integer缓存</h4>
                            <p class="text-gray-600 text-sm">Java会缓存-128到127之间的Integer对象</p>
                        </div>
                    </div>
                </div>
            </div>
        </section>

        <!-- Visualization Section -->
        <section class="mb-16">
            <div class="flex items-center mb-6">
                <div class="w-2 h-8 bg-blue-600 mr-3"></div>
                <h2 class="text-2xl md:text-3xl font-bold text-gray-800 font-serif">工作原理图解</h2>
            </div>
            
            <div class="bg-white p-6 rounded-lg shadow-md">
                <div class="mermaid">
                    graph TD
                        A[int a = 10] -->|自动装箱| B[Integer.valueOf(10)]
                        B -->|自动拆箱| C[a.intValue()]
                        D[new Integer(10)] -->|equals比较| E[自动装箱int参数]
                        style A fill:#f0fff4,stroke:#38a169
                        style B fill:#ebf8ff,stroke:#3182ce
                        style C fill:#f0fff4,stroke:#38a169
                        style D fill:#ebf8ff,stroke:#3182ce
                        style E fill:#fff5f5,stroke:#e53e3e
                </div>
            </div>
        </section>

        <!-- Detailed Explanation -->
        <section>
            <div class="flex items-center mb-6">
                <div class="w-2 h-8 bg-green-600 mr-3"></div>
                <h2 class="text-2xl md:text-3xl font-bold text-gray-800 font-serif">深入解析</h2>
            </div>
            
            <div class="space-y-6">
                <div class="bg-white p-6 rounded-lg shadow-md">
                    <h3 class="text-xl font-semibold mb-4 text-gray-800 flex items-center">
                        <i class="fas fa-arrow-circle-right text-blue-500 mr-2"></i>
                        第5行: a == b
                    </h3>
                    <p class="text-gray-600">
                        这里发生了<strong class="text-blue-600">自动拆箱</strong>。当比较基本类型<code class="bg-gray-100 px-1 rounded">int</code>和包装类<code class="bg-gray-100 px-1 rounded">Integer</code>时，Java会自动调用<code class="bg-gray-100 px-1 rounded">b.intValue()</code>将Integer对象转换为int值，然后进行值比较。因此结果为<code class="bg-gray-100 px-1 rounded">true</code>。
                    </p>
                </div>

                <div class="bg-white p-6 rounded-lg shadow-md">
                    <h3 class="text-xl font-semibold mb-4 text-gray-800 flex items-center">
                        <i class="fas fa-arrow-circle-right text-purple-500 mr-2"></i>
                        第6行: b.equals(a)
                    </h3>
                    <p class="text-gray-600">
                        这里发生了<strong class="text-purple-600">自动装箱</strong>。<code class="bg-gray-100 px-1 rounded">Integer.equals()</code>方法接受Object参数，当传入基本类型<code class="bg-gray-100 px-1 rounded">int</code>时，Java会自动装箱为<code class="bg-gray-100 px-1 rounded">Integer</code>对象。因为值相同，所以结果为<code class="bg-gray-100 px-1 rounded">true</code>。
                    </p>
                </div>

                <div class="bg-white p-6 rounded-lg shadow-md">
                    <h3 class="text-xl font-semibold mb-4 text-gray-800 flex items-center">
                        <i class="fas fa-exclamation-triangle text-yellow-500 mr-2"></i>
                        注意事项
                    </h3>
                    <ul class="space-y-3 text-gray-600">
                        <li class="flex items-start">
                            <i class="fas fa-circle text-xs mt-2 mr-2 text-yellow-500"></i>
                            <span>自动拆箱可能引发<code class="bg-gray-100 px-1 rounded">NullPointerException</code>，如果包装类对象为null</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-circle text-xs mt-2 mr-2 text-yellow-500"></i>
                            <span>频繁的装箱拆箱操作会影响性能，在循环中尤其需要注意</span>
                        </li>
                        <li class="flex items-start">
                            <i class="fas fa-circle text-xs mt-2 mr-2 text-yellow-500"></i>
                            <span>==比较包装类对象时比较的是引用，而不是值</span>
                        </li>
                    </ul>
                </div>
            </div>
        </section>
    </main>

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                http://www.yuque.com/jtostring
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```